"This presents a fire hazard from leaking gasoline as well as an obstruction hazard to vehicles following the subject trucks," the U.S. National Highway Traffic Safety Administration said in a notice posted on its website.
Investigators are said to have received 32 reports of corrosion, including 28 reports in which one or both straps had failed resulting in the fuel tank dragging on the ground or detaching completely. There were six reports of fuel spills among the complaints, but no fires or injuries, NHTSA said.